(b)(4).This follow-up report is being submitted to relay additional information.The following sections were updated: b4, b5, d9, g3, g6, h1, h2, h3, h6, h10.Visual inspection of the returned item found it to exhibit signs of being implanted nicked / gouged / worn review of the device history record identified no deviations or anomalies during manufacturing related to the reported event.Device is used for treatment.Medical records were only provided for the revision procedure.A definitive root cause cannot be determined.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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